In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

Related MCQs

• The reflux to a distillation column is 100 moles/hr, when the overhead product rate is 50 moles/hr. The reflux ratio is
• In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as
• A distillation column with N plates is being operated under normal conditions. At some point of time, the operation is shifted to total reflux condition (i.e., no product and residue are being withdrawn and feed to the column is stopped). At the new steady state,
• An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii)
• Pick out the correct relationship. (Where, Ri = internal reflux ratio Ro = external reflux ratio.)
• If Rm is the minimum reflux ratio, the optimum reflux ratio may be around __________ Rm.
• Minimum reflux ratio in a distillation column results in
• The operating cost of a distillation column at minimum reflux ratio is
• For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams
• At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?